Wifi problems with ProBook 4540s

Q:Wifi problems with ProBook 4540s

Hi I have Probook 4540s with Mediatek Ralink RT3290 with version 5.0.37.0. Do you have some new version which will work better with this? WiFi is sometimes disconnecting with red x especially after sleep I have to reboot. Thank you.

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Wifi problems with ProBook 4540s

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)

Hi, I am having problems with my audio on my HP ProBook 4540s, audio is fine with a headset and with normal pc speakers, but when you use a voice calling sistem like skype for example, you cant hear the call through the normal speakers, and when you plug in a headset the voice call is the only thing you can hear, you cant hear any background sounds or music it automatically switches to the laptop's speakers, you can't have a call and have music at the same time, for example... I have tried looking for audio drivers but I cant find any that work. I have also tried contacting skype support and they say that its an audio driver problem.... Thanks.

i just bought a probook 4540s from my local school because they where getting rid of there old computers and it wont let me even get past the administrator login so i can change the settings and there is no f11 option. please help me figure out how to get it taken care of because im planning on giving it to my sister as soon as i can get it back to factory settings.

Attempted to up-date to Windows 10. Couldn't do it. Microsoft (MS) Tech tried to do it and couldn't do it. It seems there are some security tools that must be removed as they are incompatable with Windows 10. MS tried to remove and couldn't do it. He said they were on the mother board and when he tried to remove them they just kept coming back so once again he couldn't do it. He said contact HP and they could do it. Unable to find anybody at HP that can do it. As you can see nobody can do it so I guess it just cannot be done. That is unless some fine person out there has discovered a way to do it. If thats the case please tell me ho wo do it.

Good day my Hp pro book 4540s is faulty and i didnt find it fixed yet..so you guys should help me out with ideas or what to do.i bought a new battary and plug it in but the will be seeing it charging and when i unplug it ithe system short down..so i will need to use charge stairght from the socket before the system can on back..so whats the solution?

Hi, I ve been using a Probook 4540s from the year 2013. Today while I was reading a book (offline) my display stated to give some unclear pictures. Pictures were moving up and down and gave overlapped scences. Please refer the attached GIF or click here to understand the scenario (Link to GIF https://giphy.com/gifs/QzGO4cPW76wUM ) I updated the Intel Video Driver also but it could not solve the issue. Then I restarted the computer. During the boot process I realized it is not a software issue as the dispaly was acting the same. I feel this is like a hardware issue in the display or the ribbon cable.Please look at this and help me solve the case. Highly appreciate your coordiantion on this. Thanks,Isuru Reference Image

I am just wondering whether I can put a eGPU on my HP Probook 4540s to play some of the more modern games and some of the games that are a few years old now on something like high to ultra graphics. I'm thinking something along the line of a NVIDIA GTX 960 or 970ish. I actually even found some GeForce GTX 1050's at a cheaper price so is there a way I could connect something like that to this laptop. It would be cheaper then trying to save for an actual gaming rig at this time. Thank you for any replies its much appreciated.

HiI tried to update to W10 and failed with OXC 1900200 which suggests a compatibility issue. It is unclear on the HP website if this model supports W10 - HP has not tested your PC model for upgrade to Windows 10.If your Windows 7 or 8 PC was manufactured before August 2013 or is running Windows XP or Windows Vista, HP cannot confirm it can be upgraded to Windows 10. Can anybody offer an advice if the 4540S supports the W10 upgrade and if so any advice on what may be causing the error. ThanksJohn

I have a new ProBook 4540s notebook that I shut down over the weekend. I am not sure if I put it into hibernate, sleep, or what as I am still getting use to it. When I tried to turn it on (not plugged in) I got nothing. So I plugged in the power cord and hit the power button again. All it did was the LED above the cord plug blinked about 8 times and nothing else. I let it "charge" overnight and tried again in the morning. Nothing but a blinking LED. I Googled the problem and it said to take the battery out, unplug, and hold the power button down for 20 seconds. I plugged it back in but left the battery out, and still the same thing - flashing LED. HELP! Thanks.

A:My new ProBook 4540s will not turn on

Hey SBProBook,Do any other LEDs blink? Take a look at this document and let us know if you see any matches to these patterns:http://support.hp.com/us-en/document/c01443366

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Hello! My ProBook 4540s was working fine until a half hour ago, when I unplugged it to move it and then attempted to plug it back in, and it stopped charging. When plugging in the power cord (that came with the ProBook when I bought it around 18 months ago), the light above the power jack (and no other lights) flashes white 9 times. I've tried following this fix I found on Google: 1. Turn off the notebook2. remove the battery3. remove the charging adapter4. press + hold the power button for 40 seconds5. insert the charging adaptor only6. press the power button and it supposedly continues but I get stuck at this point, because even plugged in, my ProBook won't start up without the battery in also. Is this a know problem/is there a fix for this?

A:ProBook 4540s not charging

@Andearya Thank you for using HP support forum. I have sent you a private message. If you?re unsure how to check your private messages please click here.Thank you,Omar

I just have a quick question that i have not been able to find online anywhere and am wondering if you can provide some resolution for me. When I access the BIOS by clicking the F10 key on my laptop when I boot it I get the below environment which seems to be what everyone gets Now my question is if there is anyway to access a more "user friendly" BIOS layout like every other laptop/computer has shown below. I find that I don't have access to every option on my laptop in the BIOS that is currently present and I have the F60 BIOS which is the most recent one but most things are grayed out and I can't change things like the RAM speed or anything like that so I feel like I actually have no control over my system

I found that my Probook 4540s sometimes cannot boot. I have to use the trick applied to 4530s: remove battery, press power button for 40s, put the adapter. Sometimes the trick works, sometimes it doesn't. Is this a bios issue? Any solution for this?

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A:HP Probook 4540s cannot boot - sometimes

Well did you try reseating the memory? Has the computer worked since you have upgraded the memory? Also are the memory chips the same speed? If your running two different speed chips it could cause this issue. ThanksSean

I have 4540s probook , I am using PS of 19.5 V and 3.34 A , when pluged in one time white blink appears , it dose not boot when I press start also ten times blinking and no action , after a wile blinking changed to amber color ... kindly advise

We have a Probook 4540S laptop runnung Windows 7 64-bit. We encrypted the machine using the HP encryption software that came with the laptop. After less than a week of use the use is getting the error "Windows Boot Manager - Windows failed to start. A recent hardware or software change might be the cause".I see the onscreen instructions to insert the Windows installation disk and run a repair. My question is, is this a valid suggestion to fix a laptop that has been encrypted, and if not is there a solution w/o having to reimage the machine?

I have 4540s probook , I am using PS of 19.5 V and 3.34 A , when pluged in one time white blink appears , it dose not boot when I press start also ten times blinking and no action , after a wile blinking changed to amber color ... kindly advise

Hi there! Let me know what RTC (or BIOS, CMOS) battery is used in HP Probook 4540s? Your service guide doesn't tell it.My notebook is at least 3 years, I don't have any problems at the moment - but it would be good to know when should I replace it? Thank you

I upgraded to Win 10 Pro from Win 7 Pro during the free upgrade period, at the time I had a 500 gig 5400 rpm hard disc, later I replaced the HD with an OCZ Vector 180 ssd, used the included copy of Acronis disc cloning software (i updated the Bios to the newest Version HP offfered prior to installing the ssd), now when I do a cold boot it gives me an error message saying no operating system found, if I go into the BIOS Setup menu then exit out of it without making any changes it goes ahead and boots normally. I can also do a warm boot (restart)it also reboots normally. I tried contacting OCZ support, they had several suggestions such as delaying the startup time 5 secnds, didn't do anything, increased it to 10 seconds with thes same results (OCZ said the ssd needed more time to initialize itself). After trying 6 or 7 of their suggestions they sent me a new drive, I had saved the original HD so I cloned it to the new ssd, got the same results, no cold boot. I've tried evey setting I can find in the BIOS, changed it from UEFI to Legacy boot with no results, disabled network booting, everything but Optical Disc, disabled Quick Boot, but nothing has changed. In Legacy mode it shows the internal hard drive to be the first thing to boot from, but that does nothing but say it can't find a bootable drive and then the option left is shut down the computer. Looking in the BIOS under Devices it doesn't show the ssd at all. There's no firmware update available for the ss... Read more

Hey there, my HP ProBook 4540s (serial number: 2CE481QVL) has failed to charge battery. It indicates "plug in, charging" but the battery is actually not increasing from 14% for a whole day. My DVD drive has also failed to read DVDs. Whenever I insert a DVD it prompts me: D:\ directory name is invalid. Please help me out. Thanks

I have three probook 4540s laptops. do they support uefi boot ? thank you

A:does probook 4540s support uefi ?

Hi, I have a Probook 4540s and it has UEFI functionality.Bios version F.60 I can choose in BIOS between 3 boot modes:LegacyUEFI Hybrid (With CSM)UEFI Native (Without CSM) I hope this answers your question.

So there is some speculation as to whether or not the HP ProBook 4540s can handle 16gb of ram. I recently purchased this laptop from tigerdirect.com -Windows 7 Pro64 bit-Core i5 2.6ghz -Came with 8gb (2x4GB Kingston) -Claims support on website for 16GB (2x8gb -AMD Radeon 7650M Is it possible to upgrade this particular model E3V00UT with 16GB of RAM with no performance degradation? http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=8437953 Please and thank you for responding and viewing.Best,-Robert

Dears,I replaced the Optical driver (DVD) with a second hard driver (SSD), but I cannot boot from it or even see this SSD in the Boot Options menu! Anyone can help me, please! Regards,Assem SA

A:HP ProBook 4540s - Boot from second hdd/ssd replacing Optica...

Hi, You may want to try swapping the Primary HDD with the SSD, and place the HDD in the Optical drive slot.

I am an HP Employee!Thanks for being an HP Customer!Make it easier for other people to find solutions, by marking my answer ?Accept as Solution? if it solves your problem.***Click on "Thumbs up" button to the bottom right side of my post to say thanks!***

Hi, I have a Probook 4540s and have recently upgraded it from 6 to 12 GB RAM. (the two RAM sticks have identical timing)Because of the degrade of performance after installing more than 8GB of RAM(as described in this topic http://h30434.www3.hp.com/t5/Desktop-Boot-and-Lockup/Performance-degrades-in-Probook-4540s-after-mem...),I had to us msconfig to set the memory limit to 12032 MB.However, windows now says that only 10.4 GB is usable. I really appreciate your help.

Intel chipset drivers are not available for Windows 8 or 8.1 on hp.com (Intel ME drivers are available in their place, some kind of inside joke, I guess). Given HP's recent corporate reorganization, hp.com may never be updated. I think only an HP insider could answer these questions: 1) Did HP modify the Intel chipset drivers as OEMs often do or could I use ones from Intel? 2) Is there any difference between Windows 7 and Windows 8/8.1 chipset drivers?

Hi there, Is there any chance to reset the BIOS admin password? I wanted to check the wifi configuration in BIOS if enabled because I can't turn on the wifi with the button on laptop. I forgot the password. I try to removed the CMOS battery but it's not working. Is there any chance to reset or remove the password? or I should buy a new BIOS chip? here's the Screenshot: Thanks!

I'm having issue restoring my laptop to factory new. I do i have hp disk with the purchase with my laptop, however i have no idea how to restore the laptop to factory new with the disk.

A:how to restore hp probook 4540s to factory settings

Hi, I hope below link should help you. Please Back up all personal files and read all caution statements before performing a system recovery Performing an HP system recovery: http://support.hp.com/us-en/document/c03489643 Thanks,Karthik

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When I push the power button to my HP ProBook 4540s, it does not boot, but a few seconds later the fan turns on and the screen remains black. If there were any error messages, I can't see them. The only way to shut it back down is to press and hold the power button. Then I try to boot it agian. The computer will boot normally about 1 out of 35 or 40 attempts. Briefly removing the battery and placing it back does not help. I haven't made any changes to the computer. It is about 10 months old. Any ideas???

A:ProBook 4540s Powers on, but won't boot... fan turns on with...

Hello MS, Question: Do any of the LED lights on the keyboard turn on when the computer doesn?t boot? Here?s an HP troubleshooting document for notebooks that won?t start, along with some info about LED error codes: http://support.hp.com/us-en/document/c01732674 If that doesn?t help, it is probably a hardware issue. Since you've only had the notebook for 10 months it?s probably still under warranty. You can contact HP: http://www8.hp.com/us/en/contact-hp/ww-contact-us.html Please let me know if any of these suggestions helped. If not, I will try to investigate further. TobindoHP Representative

Hi, I've got a secondhand Probook 4540s from a shop near me which sells used laptops. At the time i got it it came with Windows 7 Professional 64bit. Everything was working smoothly, then I started updating the graphics card drivers and other drivers in it (in hopes of improving perfomance) and it was around that time that windows started complaining that this version of windows is not genuine. (I think it was after i updated bios or something. or I used a non microsoft software to download microsoft updates because my microsoft update manager was not working) So to the problem at hand now. I want to format my pc and for that I need windows product key right? I cant find it! It is not in the back of my laptop, not under the battery (The battery is seemed to be replaced) and I did not get any installation media along with the laptop. Any idea how to get my windows product key? or do I even need one to install windows in this laptop (like win8)I dont think the people at the shop can help me on this. (Also, the Probook 4540s does ship with windows installed right?)

A:How to find Windows product key for HP Probook 4540s (No OEM...

Hi, Please try use the following tool to find out: https://www.magicaljellybean.com/keyfinder/ Right but only close because it can have one of the following options Preinstalled:Genuine Windows® 7 Professional Genuine Windows 7 Home PremiumGenuine Windows 7 Home BasicSUSE Linux Enterprise Desktop 11FreeDOSRegards,

when i run NFS-Revels my graphics card can't work properly.it's run with Intel HD 4000.It don't run with my AMD RADEON driver.Inn some momments it stop to run.Even I can't play any games with high regulation.Please help me...

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A:AMD radeon can't work properly on win 7 in my probook 4540s

Hi SRSAKIB, I am sorry to hear that your Graphics card is not working properly on your HP ProBook 4540s Notebook PC. Your ProBook is a Business computer and you will get your the best answer on the commercial forum. You can post here at the HP Enterprise Business Community. In the meantime here is the HP ProBook 4540s Notebook PC that may have the information that you need. I hope this information helps. Take care and have a great day!

Have had blue screen of death on several occasions. Then Event viewer said the critical event was as follows; Event ID: 41Task Category: (63)Level: CriticalKeywords: (70368744177664),(2)User: SYSTEM Then ran F2 disc scan and recieved the following:Failure ID: 0G8F2W-00089H-QFPK1A-61D903 What do do next?

"Education costs money; so does Ignorance"If my post has helped you, click the Kudos Thumbs up!If it solved your issue, Click the "Accept as Solution" button so others can benefit from the question you asked!

This is my 3rd day since i bought this new HP probook 4540s [Product No. B9A39PA#UUF] and i like it, i made a clean install for windows 7 ultimate x64 and i've just realised that the hp drivers support page dose not has any drivers for the ultimate version, so i downloaded the proffesional drivers, now i have all devices are installed except two devices named unknown device, please help me. The hardware Ids: 1- unknown device USB\VID_138A&PID_003D&REV_0104USB\VID_138A&PID_003D 2- unknown device ACPI\HPQ6000*HPQ6000

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A:HP ProBook 4540s missing unknown device

Hi, First, download and install the Chipset driver on the following link. Chipset Driver. After this installation has completed, restart the notebook. When windows has reloaded, download and install the following. Validity Sensor Driver. HP 3D DriveGuard. Regards, DP-K

Dear Customer, Welcome to HP Support Forum and we are glad to assist you. This is to inform you that all HP Business Notebooks such as Probooks or Elitebooks have more stringent security than consumer models infact they don't produce 'halt codes', the password cannot be derived from the Serial Number and the code is stored in non-volatile memory so removing the RTC cell will not reset the password in this case. Please have a look at this link. http://forums.mydigitallife.info/threads/49497-HP-Probook-Elitebook-BIOS-Password-Reset-Utility 2. Please Contact HP Business Notebook support they should be able to send you a customized SMC.bin file which you can use at boot to reset the password. Hope this helps, for any further queries reply to the post and feel free to join us again **Click the White Thumbs Up Button on the right to say Thanks**Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem. Thank You,K N R K

I Have a ProBook 4540s. I would like to upgrade the standard 1366 x 768 LCD to a higher resolution display. If an upgrade is possible, please provide details including other components/part numbers that would need to be swapped out. Notebook specs:Intel Core i5- 3340M cpu at 2.70 GHzIntel HD Graphics 40008 GB RamWin 7 Pro Thanks, Ted Watts

So I have had my laptop for little over a year now and before yesterday it was working fine . However yesterday I tried turning it on and now it doesn't even start. When I click on the power button it lights up for a sec then turns off then after a couple of seconds it turns on and then off this cycle has been repeating for a long time not and really don't want to buy a new one , I have tried removing the battery and holding down the power button then plugging in the AC cable but NOTHING seems to work. Someone please help me!

A:My HP Probook 4540s is not turning on, the power buttons jus...

Dear Customer,Welcome and Thank you for posting your query on HP Support Forum It looks like you are not able to Power ON the Notebook and wanted to fix the issuePlease perform below shown steps to find out if this is a software or hardware issue:1. Remove all Peripherals and Cables, Disconnect them and try to Power ON the Unit 2. Check for LED Light Status and ensure Power Button spring action is normal 3. Swap with a known good Power Cord and Power Adapter 4. Incase no Adapter is available, Check if the Power Adapter is slightly warmNote: This will give us a hint that the Power Adapter might be fine 5. Do you know if the Notebook was in Battery or Power Adapter Mode when you used it for the last timeNote: Ensure there is no liquid spillage or Power Outage 6. Check if the AC Adapter Port is loose/broken Note: If the Notebook doesn't Power ON even with a known good Power Adapter this confirms the Hardware fault with System Board or the DC Power Circuit Hope this helps, for any further queries reply to the post and feel free to join us again **Click the 'Thumbs Up Button' to say Thanks** Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem. Thank You,K N R KAlthough I am an HP employee, I am speaking for myself and not for HP

I bought my laptop about two weeks ago. Then first, I installed Windows 7 Professional 64 bit. I installed "HP Protect Tools" & could enroll all 20 fingers at once without any issue. Then recently, reinstalled the whole system with Windows 7 Ultimate 64 bit. Then, installed Protect tools & could enroll my two thumbs. But I couldn't enroll any other finger. For each other finger, first two confirmtions work properly. But at third, it always fails. I cannot think that this is an issue related to how I sweep the fingers. Because, then how do every first two confirmations get passed?. Hope anyone will help me to sort this out.

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A:Fingerprint already enrolled Issue - ProBook 4540s

OK.. I just sorted it out. I clear all fingerprints data & then, I could enroll all 20 fingers.